Detection method for frost-resistant durability of glass fiber composite material
A composite material and detection method technology, which is applied in the detection of the anti-freezing durability of FRP composite materials, and the detection of the anti-freezing durability of FRP composite materials in a freezing environment, can solve the problem that the anti-freezing durability of FRP composite materials cannot be evaluated.
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Embodiment 1
[0068] Prepare and clean the mold. The length, width and height of the inner wall of the mold are 400mm×400mm×2mm. Apply a release agent on the molding surface of the mold and dry it fully for use. Then, put 189 # The resin mixture is obtained after the unsaturated polyester resin is evenly stirred with additives, including initiators, accelerators, pigment pastes, etc. Brush the resin mixture on the molding surface of the mold, and lay the cut reinforced material glass fiber cloth on the brushing surface of the resin mixture to make it soak in the resin and remove air bubbles; repeat the above resin mixture painting and glass fiber cloth The layup of the fiber cloth is performed until a test thickness of 2 mm is reached. The sample that reached the test thickness was placed at room temperature for 1 day, then released from the mold, and then placed at room temperature for 21 days, including the sample processing time, to obtain FRP sample 1#. According to the same condition...
Embodiment 2
[0070] Prepare and clean the mold. The length, width and height of the inner wall of the mold are 400mm×400mm×2mm. Apply a release agent on the molding surface of the mold and dry it fully for use. Then, stir the MFE-2 epoxy vinyl ester resin and auxiliary agents evenly to obtain a resin mixture. The auxiliary agents include initiators, accelerators, and pigment pastes. Brush the resin mixture on the molding surface of the mold, and lay the cut reinforced material glass fiber cloth on the brushing surface of the resin mixture to make it soak in the resin and remove air bubbles; repeat the above resin mixture painting and glass fiber cloth The layup of the fiber cloth is performed until a test thickness of 2 mm is reached. The sample that reached the test thickness was placed at room temperature for 1 day and then released from the mold, and then placed at room temperature for 21 days, including the sample processing time, to obtain FRP sample 2#. According to the same conditi...
Embodiment 3
[0072] Prepare and clean the mold. The length, width and height of the inner wall of the mold are 400mm×400mm×2mm. Apply a release agent on the molding surface of the mold and dry it fully for use. Then, mix the MFE-711 epoxy vinyl ester resin and additives evenly to obtain a resin mixture, and the additives include initiators, accelerators, and pigment pastes. Brush the resin mixture on the molding surface of the mold, and lay the cut reinforced material glass fiber cloth on the brushing surface of the resin mixture to make it soak in the resin and remove air bubbles; repeat the above resin mixture painting and glass fiber cloth The layup of the fiber cloth is performed until a test thickness of 2 mm is reached. The sample that reached the test thickness was placed at room temperature for 1 day, then released from the mold, and then placed at room temperature for 21 days, including the sample processing time, to obtain FRP sample 3#. According to the same conditions, prepare...
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